Feeding mechanism for cotton-gins



5 SheetsSheet 1.

(No Model.)

V. R. DAVIS.

FEEDING MECHANISM FOR COTTON GINS.

Patented July 16, 1889.

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5 Sheets-Sheet 2.

(No Model.)

V. R. DAVIS.

FEEDING MECHANISM FOR COTTON ems.

Patented July 16, 1889.

5 Sheets-Sheet 3.

(No Model.)

V. R. DAVIS. FEEDING MECHANISM FOR COTTON GINS. No. 406.889.

Patented July 16, 1889.

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(No Model.)

V. R. DAVIS. FEEDING MECHANISM FOR COTTON ems.

No. 406,889. Patented July 16. 1889.

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FEEDING MECHANISM FOR COTTON GINS. No. 406,889. Patented July 16, 1889.

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UNITED STATES PATENT OFFICE.

VAN R. DAVIS, OF TEMPLE, GEORGIA.

FEEDING MECHANISM FOR COTTON-GINS.

SPECIFICATION forming part of Letters Application filed August 2, 1888.

To (all whom it may con/car..-

Be it known that I, VAN R. DAvIs, a citizen of the United States, residing at Temple, in the county of Carroll and State of Georgia, have invented certain new and useful Improvements in Feeding Mechanism for Cotton- Gins; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figu res of reference marked thereon, which form a part of this specification.

The object of this invention is to remove from seed-cotton all extraneous substances and to fit the fiber to receive the fullest benefit from ordinary subsequent operations to which it is subjected.

The invention is fully described and claimed in this specification and shown in the accompanying drawings, in which- Figure 1 is aside elevation of the complete machine. Fig. 2 shows the same seen from the opposite side. Fig. is a plan of the ap paratus. Fig. 4: is a central longitudinal section made by a vertical plane. Figs. 5, (5, 7, and S are respectively details of the toothed cylinder, the sliding pawl, the pitman, and the fan, all hereinafter mentioned.

In the drawings, A A is a suitable frame provided with suitable supports 13, and itself supporting the working parts of the apparatus. It consists, essentially, of two vertical walls connected by suitable cross-bars and rods, a covering for the rear portion of the machinery, and a chute N for delivering the cleaned cotton. In this frame are mounted drums J J which impart motion to an endless carrier H, composed of slightly-separated transverse slats fixed upon two or more narrow belts ill. Near the rear end of the carrier are revolubly-mounted toothed cylinders E E, and above the latter is a fan F, revolving in the usual chamber to force air downward and forward about the cylinders. The

upper half of the cylinder E is covered by wire-netting II, secured to the curvilinear edges of the walls of the frame, and slightly below the lower part of the cylinder E is a partial cylindrical bed composed of slightly- Patent No. 406,889, dated July 16, 1889.

Serial No. 281,804. (No model.)

separated bars 0, bearing teeth 0, between which the teeth of the cylinder pass when the latter revolves. Motion is imparted to the cylinder E by a power-pulley C, Fig. 1, fixed upon its shaft 6 ley D and a belt D this motion is transmitted to the pulley G upon the fan-shaft g, and upon the opposite end of the shaft 6 Fig. 2, is fixed a pulley Q, which by a belt P and pulley P imparts motion to the cylinder E, the direction of the motion being as indicated by the arrows. The pulleyP also serves as a crank-plate, and in its revolution imparts intermittent motion to the carrier M through a wrist-pin R, pitman R, sliding pawl S, and ratchet T, the latter fixed upon the shaft J' of the drum J The pawl S is a straight bar longitudinally slotted at .5", near each end, and supported by studs 8 passing through the slots and fixed to the frame of the machine. The pitmanRis pivotally connected with the pawl at a point B between the slots and the bar, and has at one end a curved point 5 to engage the teeth of the ratchet-wheel 'l. The slot nearest this point is slightly wider than the stud therein, to permit the rising and falling of the pawl as it follows the curve of the ratchet-wheel in advancing an 'l to slip over the teeth in returning.

The teeth upon the cylinders are preferably arranged in spiral lines, as shown in Fig. 5, and the tension of the carrier M may be regulated by means of adjustable slides m, in which the shaft J of the drum J is mounted. These slides may be moved horizontally in ways in the supportingframe A B, and are secured in any desired position by screws m; also, the distance of the rear end of the carrier below the cylinder E may be varied by vertically-adj ustable slides K, supporting the shaft .T in U-shaped bearings in their upper ends. The slides move in ways or gains in the walls of the frame and are retained in these ways by plates L, secured to the frame by screws, and they are maintained in any desired vertical adjustment by set-screws K, passing through the plates L, respectively. In the drawings one only of these slides is fully seen, the other being partially hidden by the ratchet T.

By means of a second pul- I Now in operation the cotton to be treated is placed upon the carrier M, where the sudden movements imparted by the pawl shake the heavier foreign substances through bethe force of the blast from the fan, passes out between the slats or bars 0 and is conveyed away in any convenient manner, while the cotton, now thoroughly cleaned, escapes through the chute N in excellent condition for further treatment.

hat I claim is The combination, with the frame A A, of the carrier M, the carrier-dru ms J 2 J mounted, respectively, in vertically andhorizontally adj ustable bearings, provisions for adjusting said bearings, as described, the toothed cylinder E, the netting H, the fan F, the guidingbridge 0 the toothed cylinder E, and a concave bed formed of separate bars provided with teeth adapted to pass between the teeth of the rotating cylinder E, substantially as set forth.

In testimony whereof I affiX my signature in presence of two witnesses.

VAN R. DAVIS.

WVitn esses:

THOS. J. CocHRAN, JOEL PHILLIPS. 

